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MrRissso [65]
3 years ago
11

Which statement best describes a difference between prokaryotic cells and eukaryotic cells? *

Biology
2 answers:
zubka84 [21]3 years ago
7 0
<span> The presence of membrane-bound organelles in eukaryotic cells indicates that they are more complex than prokaryotic cells.</span>
Travka [436]3 years ago
5 0

Answer:

The correct answer will be option C.

Explanation:

Prokaryotes are the single-celled organisms of domain bacteria and archaea  which lacks a nucleus and membrane-bound organelle while eukaryotic cells are the organisms which contains a well defined nucleus and other membrane bound organelles.

The fundamental difference between prokaryotes and eukaryotes is the presence of DNA(genetic material) in a membrane-bound organelle called nucleus which is absent in prokaryotes where genetic material is stored in an area called nucleoid which is not surrounded by the nuclear membrane.

The compartmentalisation of DNA confers stability to the cell as genetic material is protected from the external bodies and injuries.

Thus, option C is the correct answer.

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Reabsorption of filtered glucose from the lumen in the pct is largely by means of:______.
Alika [10]

Reabsorption of filtered glucose from the lumen in the pct is largely by means of: secondary active cotransport.

Nephron is the functional unit of the kidney associated with removing waste products from the blood. It achieves the function by performing filtration which results in formation of urine. A nephron is divided into two parts namely renal corpuscle and renal tubule. Renal corpuscle is associated with filtration and renal tubule mainly performs reabsorption.

Renal tubules are further divided into Proximal Convoluted Tubule (PCT), loop of Henle, Distal Convoluted Tubule (DCT) and collecting duct. PCT and DCT are mainly linked with reabsorption and secretion respectively. Reabsorption in PCT occurs via cotransport. Here, glucose is reabsorbed along with sodium ions via SGLT2 cotransporter. Specifically, the reabsorption method is termed as sodium-coupled secondary active transport.

Learn more about filtration and rebasorption here -

brainly.com/question/3145071

brainly.com/question/11008782

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8 0
1 year ago
Nitric oxide is a paracrine signal molecule because NO
hichkok12 [17]

Answer:

C. is unstable, with a short half life

Explanation:

Paracrine hormones are the hormones that act on neighboring cells only. These hormones or chemicals are largely unstable and have a brief life as do not visit the distantly placed target cells. For instance, somatostatin is secreted by D cells of the pancreas. It acts in a paracrine manner and inhibits the discharge of hormones from the neighboring beta and alpha cell.

Likewise, one of the functions of unstable NO gas is to serve as a vasodilator. It is released by epithelium cells and serves to dilate arterioles and relax precapillary sphincters. Then it is degraded.

8 0
3 years ago
Which characteristic of viruses prevents them from being used as evidence to support cell theory?
Ne4ueva [31]

Answer:

Viruses replicate only inside host cells.

Explanation:

<u>Viruses are not used as evidence to support the cell theory because they are not considered a cell and cannot carry out vital life processes without getting into host cells. </u>

According to the cell theory, the cell is the basic unit of life, all living organisms are made up of cells and cells arose from preexisting cells. A virus that is not in a host cell is just a piece of DNA/RNA surrounded by a protein coat and is not capable of carrying out any life process for it to be considered living.

<em>Viruses are only able to reproduce and multiply when they get access to a living host. They use the genetic mechanisms of the host to replicate their DNA/RNA using the lytic or lysogenic cycle. Hence, they are not used to support the cell theory. </em>

3 0
3 years ago
Which part of the nucleotide contains the element Nitrogen?
oksian1 [2.3K]

Answer:

The base, it is called a nitrogen base

Explanation:

3 0
3 years ago
Gomez found the masses of three rocks for science project .the first rock had a mess of 19.28 grams, the second rock had a mass
ziro4ka [17]
The combined mass of rock 1 and 2 = 19.28 + 25.3
= 44.58

Difference between rock 3 and combined rocks 
= 46.3 - 44.58
= 1.72 grams

therefore, the third rock was 1.72 grams greater than the combined mass of the other two rocks. 
3 0
3 years ago
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